A Photosystem is a funnel shaped cluster of photosynthetic pigments, in the thylakoid membrane of the chloroplast.
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Photosystem 1
1. Photosystem I is found in the membrane facing the inside of the grana and Photosystem II is found in membrane facing the stromaTHYLAKOID MEMBRANE
Photosystem 2 happens in photosynthesis before photosystem 1. However they are numbered in order of how they were discovered. Photosystem 1 was discovered before photosystem 2. In photosynthesis the order of them is 2 then 1. meaning that photosystem 1 was discovered 1st but photosystem 2 happens 1st in photosynthesis
NADPH
Photosystem's electron travel through the electron transport chain(etc) where ATP is produced and then back to the photosystem. In non-cyclic photophosphorylation, Photosystem II electron then is absorbed by photosystem I, photosystem I electron used to form NADPH and photosystem II gets its electron from photolysis of water. For you unfortunate children using Novanet: They move through an electron transport chain to photosystem 1.
In photosystem 2- water(photolysis) In photosystem 1 - electron from photosystem 2
Photosystem 1 and Photosystem 2
the cluster of pigment molecules is a photosystem.
No, they move from photosystem 2 to photosystem 1. 2 evolved first but was not discovered until after photosystem 1.
The thylakoid membrane contains 2 photosytems, known as Photosystem I and Photosystem II. Together, they function to absorb light and transfer energy to electrons.
Both photosystem 2 & 1 are light-dependent.
Photosystem II most likely evolved first because it provides the energy for producing ATP and passes its electrons to photosystem I.